Shell from bar
Shell from bar
(OP)
Hi,
Is it possible, according to ASME VIII Div.1, to make a vessel's shell from bar? Looking at UG-14 it seems prohibited. Thanks
Is it possible, according to ASME VIII Div.1, to make a vessel's shell from bar? Looking at UG-14 it seems prohibited. Thanks





RE: Shell from bar
Cheers,
RE: Shell from bar
If I had a NPS8 vessel, could I use SA 479 316L for the shell? SA 479 seems referring only to bars, and for UG-14, as we discussed before, I couldn't use it. Am I wright? Thanks
RE: Shell from bar
RE: Shell from bar
RE: Shell from bar
RE: Shell from bar
To your OP, I have seen stainless bar at 10" diameter dual certified as bar / forging. You might look into that with your supplier.
Regards,
Mike
RE: Shell from bar
Go with 8NPS pipe. As per pressure select appropriate schedule.
Kejul_Mistry
RE: Shell from bar
RE: Shell from bar
I have this certificate, where it's written that the material is forging, but at the same time is "A 479": is it a contraddiction? How is it possible? If it is true, could I use it for shell and heads NPS8 without controls required by Code cases 2155-2156? Thanks
RE: Shell from bar
Regards,
Mike
RE: Shell from bar
RE: Shell from bar
RE: Shell from bar
The code case examination requirements, though logical and probably required for carbon steel bar product, seem to me excessive for modern austenitic stainless steel bar. They fall into the "better safe than sorry" category I guess. Simple rules are more likely to be followed, even if they are excessively restrictive for some materials.